> And what the author is doing is asking for a "with" statement
No, he most definitely is not, a with statement (or Common Lisp's version, `unwind-protect`) does not provide resuming, only restoring a previously-stored context.
> the post doesn't show the power of "condition" to Pythoners, because the feature used in the example already exists in the core language.
You should try reading the post again rather than stop at the first paragraph, because you're wrong.
Of course we are.
> And what the author is doing is asking for a "with" statement
No, he most definitely is not, a with statement (or Common Lisp's version, `unwind-protect`) does not provide resuming, only restoring a previously-stored context.
> the post doesn't show the power of "condition" to Pythoners, because the feature used in the example already exists in the core language.
You should try reading the post again rather than stop at the first paragraph, because you're wrong.